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Merge branch 'master' into docking

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# Conflicts:
#	examples/imgui_impl_win32.cpp
#	imgui.cpp
This commit is contained in:
ocornut
2020-03-05 11:48:57 +01:00
parent 91ac93f9a6 0850b46c88
commit a7ace918fe
9 changed files with 164 additions and 54 deletions
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42
imgui_draw.cpp
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@ -361,10 +361,10 @@ ImDrawListSharedData::ImDrawListSharedData()
InitialFlags = ImDrawListFlags_None;
// Lookup tables
for (int i = 0; i < IM_ARRAYSIZE(CircleVtx12); i++)
for (int i = 0; i < IM_ARRAYSIZE(ArcFastVtx); i++)
{
const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(CircleVtx12);
CircleVtx12[i] = ImVec2(ImCos(a), ImSin(a));
const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(ArcFastVtx);
ArcFastVtx[i] = ImVec2(ImCos(a), ImSin(a));
}
memset(CircleSegmentCounts, 0, sizeof(CircleSegmentCounts)); // This will be set by SetCircleSegmentMaxError()
}
@ -904,10 +904,18 @@ void ImDrawList::PathArcToFast(const ImVec2& center, float radius, int a_min_of_
_Path.push_back(center);
return;
}
// For legacy reason the PathArcToFast() always takes angles where 2*PI is represented by 12,
// but it is possible to set IM_DRAWLIST_ARCFAST_TESSELATION_MULTIPLIER to a higher value. This should compile to a no-op otherwise.
#if IM_DRAWLIST_ARCFAST_TESSELLATION_MULTIPLIER != 1
a_min_of_12 *= IM_DRAWLIST_ARCFAST_TESSELLATION_MULTIPLIER;
a_max_of_12 *= IM_DRAWLIST_ARCFAST_TESSELLATION_MULTIPLIER;
#endif
_Path.reserve(_Path.Size + (a_max_of_12 - a_min_of_12 + 1));
for (int a = a_min_of_12; a <= a_max_of_12; a++)
{
const ImVec2& c = _Data->CircleVtx12[a % IM_ARRAYSIZE(_Data->CircleVtx12)];
const ImVec2& c = _Data->ArcFastVtx[a % IM_ARRAYSIZE(_Data->ArcFastVtx)];
_Path.push_back(ImVec2(center.x + c.x * radius, center.y + c.y * radius));
}
}
@ -2556,8 +2564,7 @@ void ImFontGlyphRangesBuilder::AddText(const char* text, const char* text_end)
text += c_len;
if (c_len == 0)
break;
if (c <= IM_UNICODE_CODEPOINT_MAX)
AddChar((ImWchar)c);
AddChar((ImWchar)c);
}
}
@ -2601,6 +2608,7 @@ ImFont::ImFont()
Scale = 1.0f;
Ascent = Descent = 0.0f;
MetricsTotalSurface = 0;
memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
}
ImFont::~ImFont()
@ -2633,12 +2641,17 @@ void ImFont::BuildLookupTable()
IndexAdvanceX.clear();
IndexLookup.clear();
DirtyLookupTables = false;
memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
GrowIndex(max_codepoint + 1);
for (int i = 0; i < Glyphs.Size; i++)
{
int codepoint = (int)Glyphs[i].Codepoint;
IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX;
IndexLookup[codepoint] = (ImWchar)i;
// Mark 4K page as used
const int page_n = codepoint / 4096;
Used4kPagesMap[page_n >> 3] |= 1 << (page_n & 7);
}
// Create a glyph to handle TAB
@ -2667,6 +2680,19 @@ void ImFont::BuildLookupTable()
IndexAdvanceX[i] = FallbackAdvanceX;
}
// API is designed this way to avoid exposing the 4K page size
// e.g. use with IsGlyphRangeUnused(0, 255)
bool ImFont::IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last)
{
unsigned int page_begin = (c_begin / 4096);
unsigned int page_last = (c_last / 4096);
for (unsigned int page_n = page_begin; page_n <= page_last; page_n++)
if ((page_n >> 3) < sizeof(Used4kPagesMap))
if (Used4kPagesMap[page_n >> 3] & (1 << (page_n & 7)))
return false;
return true;
}
void ImFont::SetGlyphVisible(ImWchar c, bool visible)
{
if (ImFontGlyph* glyph = (ImFontGlyph*)(void*)FindGlyph((ImWchar)c))
@ -2731,7 +2757,7 @@ void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst)
const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const
{
if (c >= IndexLookup.Size)
if (c >= (size_t)IndexLookup.Size)
return FallbackGlyph;
const ImWchar i = IndexLookup.Data[c];
if (i == (ImWchar)-1)
@ -2741,7 +2767,7 @@ const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const
const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const
{
if (c >= IndexLookup.Size)
if (c >= (size_t)IndexLookup.Size)
return NULL;
const ImWchar i = IndexLookup.Data[c];
if (i == (ImWchar)-1)